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- """Tests for tap2pcap."""
- from __future__ import print_function
- import os
- import subprocess as sp
- import sys
- import tap2pcap
- # Validate that the tapped trace when run through tap2cap | tshark matches
- # a golden output file for the tshark dump. Since we run tap2pcap in a
- # subshell with a limited environment, the inferred time zone should be UTC.
- if __name__ == '__main__':
- srcdir = os.path.join(os.getenv('TEST_SRCDIR'), 'envoy_api')
- tap_path = os.path.join(srcdir, 'tools/data/tap2pcap_h2_ipv4.pb_text')
- expected_path = os.path.join(srcdir, 'tools/data/tap2pcap_h2_ipv4.txt')
- pcap_path = os.path.join(os.getenv('TEST_TMPDIR'), 'generated.pcap')
- tap2pcap.tap2pcap(tap_path, pcap_path)
- actual_output = sp.check_output(
- ['tshark', '-r', pcap_path, '-d', 'tcp.port==10000,http2', '-P'])
- with open(expected_path, 'rb') as f:
- expected_output = f.read()
- if actual_output != expected_output:
- print('Mismatch')
- print('Expected: %s' % expected_output)
- print('Actual: %s' % actual_output)
- sys.exit(1)
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